Title.
Trying to get UVs on new stuff to make Volcanic/Mad set and maybe a DA
Mass Crafting vs UV Rolling? - What's more efficient and why?
So what UVs are ideal for Spiral Demo Helm/whateverthearmoris
Ideally your Volcanic/Mad set would have none of the negatives, so you should aim for (at least) mediums of shock, freeze, or poison. I'd say that poison isn't too bad and freeze is debatable since both don't damage you directly, so I made shock my priority. Lots of people go for fire as well, so that the set can be more effective for FSC.
Also, since with Volcanic/Mad (I'm assuming you're doing Volcanic Helm and Mad Bomber Suit) you'd have CTR very high--which goes to max when you have fully heated bombs--and bomb damage med, you can go for bomb damage trinkets as well.
Edit: Ah, you changed your question to Spiral Demo. Well, if you're using full Mad Bomber, then ideally you'd have max fire/shock, with some resistance to freeze would be nice too. Full volcanic demo could use a low CTR or some higher bomb damage trinkets. Bomtastic is pretty much not an option. xD
Heh, I totally mixed up trinkets and UVs earlier...
Just to expand on what Myllakka said...
Haven't ever really thought about what the ideal UVs are for bombing armors, just always made what made sense to me :)
I wouldn't bother with damage defense UVs (shadow, pierce, etc.) They seem insignificant once you hit T3. Statuses though are quite useful in Medium - Max form.
If you get a UV Fire Max, it is great to turn that into Mad Bomber. This would allow you to safely use it in FSC. Medium would actually be enough to offset Mad Bomber's negative status, but Max would give you a status bonus.
Medium+ on Shock or Freeze is great on Volcanic. This allows that set to be useful in more than just Fire areas. The other statuses such as Stun, Curse or Poison aren't considered deadly, so would be less valuable. Though, Max Stun would be nice for FSC and Max Curse would be nice for UFSC. But I would put more emphasis on obtaining Shock/Freeze UVs for Volcanic. You could put Fire UVs on Volcanic, but the increase in fire defense would not be significant.
One problem to point out on making Volcanic Demo Suit is that it only has a Low CTR bonus. So you'll need a UV CTR Low on your bombs to reach Max CTR at Level 10. (2* bombs with CTR Low regularly show up on the AH.) Or get a Bomb Focus trinket... but if you are going to use a trinket to get to CTR Max then might has well get the Elite trinket and not have to wear a bomb suit at all. Which is what I sometimes do - just wear a bomber helm, add an Elite Bomb Focus trinket then whatever armor for defensive purposes.
The DA would be very difficult to mass craft to get a UV (Jelly Tokens and all that...) Instead, upgrade your Sealed Sword to DA. If you don't get a UV you want just in that process, proceed to UV Roll. Alternatively, buy the UV you want in Sealed/Avenger/DA form. It could actually be cheaper that way, depending on what UVs you are looking for.
Since Volcanic Demo and Mad Bomber starts at 2* it'll be really easy to mass craft. But be sure to do so on mist... that way a large portion of the cost is free. Either mass craft on days you are not playing, or use an alt, or even many alts. This is preferred because you can vendor items you don't want to keep or sell them at the AH to recoup costs. You might even make a profit in the process. Again though, depending on what UVs you are looking for, you might be able to get it off the AH for a reasonable sum of CR.